Metallic spring-tire.



W. H. HENSCHEN.

METALLIC SPRING TIRE.

APPLICATION FILED DEC. 13. 1915.

Patented Jan. 2, 191?.

WITNESSES.

,4 TTOR/VEVS snare WILLIAM E. HENSCHEN, F INDIANAPOLIS, INDIANA, ASSIGITCR OF OI IE-HALF TO JOHNP. COLLIPNS, OF CHICAGO, ILLINOIS.

METALLIC SPRING-TIRE.

Specification of Letters ratent.

Patenteddan. 2, 1291?.

Application filed December 13, 1915. Serial No. 66,589.

To aZZ whom it may concern: I

Be it lmown that 1, WILLIAM H. HEN- seHnN, a citizen of the United States, and a resident of Indianapolis, county of Marion, and State of Indiana, have invented a cer tain new and useful Metallic Spring-Tire; and l do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanylike parts.

The object of this invention is to provide a wheel with a spring tire whereby it will he resilient so as to have the advantages of the ordinary pneumatic or rubber tire and avoid the disadvantages found therein.

The main feature of the invention consists Y in. naviding a series of springs overlapping other, having one end of each spring :1 to the rim of the wheel and the other e, iiictionally engaging the next spring so as to he movable thereon and maintain its resiliency. As shown in the accompanying d wings, there may be a second spring seared with the above-mentioned spring to the rimv extending beneath the firstinen 'oned spring and pressing outwardly a strengthen its tension toc of the invention consists suitable traction for the wheel, urality of small outwardly ctions on the outer surface ingdrawings, in which like letters refer toin order that dirt or 3 is a cross section on the line 3-3 of Fig. 1. Fig. 4 is a cross section on the line 44 of Fig. 1. I p o In the drawings there is shown a wheel rim having spokes 11 and an extended band portion 12 integral therewith. Said band portion is provided with recesses 13 in which are secured the outer springs 14 and inner springs 15 by means of bolts 16. Said springs are secured together at their fixed ends by said bolts and are securely held in the recess 13. The springs 1 1 are so arranged that their other ends overlap the following spring so as to rest thereon and be held thereto by their inwardly exerted tension. The springs 15, secured by the same means as the springs 14 to the rim, extend beneath the springs 14 and engage the inner surface thereof near their centers or their weakest points and exert an outward pressure against the springs 14; so as to relieve the strain thereon and reinforce them. On the outer surface of the springs 14 there are'projections 18 which are adapted to improve the traction of said wheel and consist of rounded projections secured thereon.

There are openings 19 in the rim spaced at intervals provided for the removal of dirt and gravel from beneath the springs so that they will not become choked thereby and prevent their flexible movement. If any dirt or gravel becomes lodged between or under the springs, it will be dislodged and forced automatically through the openings 19 by the pressure of the springs. Said openings are provided to allow any dirt to be forced therethrough instead of against the rim where it would become clogged and prevent the desired movement oi the springs.

While two series of springs are shown, the

invention is not limited to two series necessarily, as for some purposes there may be more or less than two series.

There are slots 20 in the free ends of the springs 15 provided for the same purpose as the openings 19, namely, to prevent the springs from becoming clogged with dirt or the like.

The invention claimed is: ner surfaces of said first mentioned springs,

A Wheel riin a series of overlapping and means on said second mentioned springs springs secured to said rim and having one for allowing dirt and the like to be removed 10 end of each spring engaging and resting on from between said springs.

, the adjacent spring, a second series of In Witness whereof, I have hereunto afsprings each secured at one end to said rim fixed my signature. 7

and having the other. ends engaging the in- WILLIAM H. HENSCHEN. 

